This museum holds a fully-functional replica of the "Turtle," the first American submarine ever built.

Along the old Route 66 is an abandoned trading post made from old telephone poles, built by a former circus clown.

The Atlantis of Cape Cod reemerges during the lowest of tides.

A cabin completely covered in coffee mugs, where visitors are welcome to leave one of their own—if they can find an empty nail.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

Restaurant in Northern Wisconsin comes with a unique feature: a grassy roof covered in living goats.

The rusty hull of this 1899 ship serves as a tribute to explorers of the bottom of the world.

In the middle of the desert, miles from any human life, sat an anomalous pay phone that still magically answers your calls.

The strange behavior of a tween led to allegations of witchcraft and a curse being placed on anybody within earshot.

This grave marks the passing of a historic Jane Doe whose identity remains a mystery to this day.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

A 19th-century politician who died after walking home in a blizzard is honored with this Manhattan statue.

There are lots of hands and feet stamped in the cement in front of Grauman’s Chinese Theater, but Mel left behind something extra.

Even with only two residents and one building, this tiny Illinois town is famous for its burgers.

This sandstone gorge in New York State's Adirondack Mountains is home to waterfalls, flumes, and more.

For 20 years, this whale skeleton has been slowly dripping oil on the floor of the museum where it hangs.

The spiral staircase hidden inside this giant Parisian column was likely built for Catherine de Medici's astrologer.

The largest natural travertine bridge in the world is nestled in a small canyon in central Arizona.

Communism's topsy-turvy effect on Poland has been brought to life in this wacky tourist trap.

Swarovski's museum/theme park is a fake diamond fantasia overlooked by a giant.

While many places make the claim, the Library of Congress says this restaurant is the birthplace of the hamburger.

This beautiful system of tunnels built into natural rock serves as a centuries old plumbing system.

A reproduction of earth's many biomes.

An urban laboratory.